| 渤海南部莱州湾晚更新世以来沉积演化特征 |
| |
| 引用本文： | 高茂生,郭飞,侯国华,仇建东,孔祥淮,刘森,黄学勇,庄海海.渤海南部莱州湾晚更新世以来沉积演化特征[J].中国地质,2018,45(1):59-68. |
| |
| 作者姓名： | 高茂生 郭飞 侯国华 仇建东 孔祥淮 刘森 黄学勇 庄海海 |
| |
| 作者单位： | 中国地质调查局青岛海洋地质研究所, 国土资源部油气资源和环境地质重点实验室, 山东 青岛 266071;海洋国家实验室海洋矿产资源评价与探测技术功能实验室, 山东 青岛 266061,中国科学院地球环境研究所, 陕西 西安 710061,中国地质调查局青岛海洋地质研究所, 国土资源部油气资源和环境地质重点实验室, 山东 青岛 266071;海洋国家实验室海洋矿产资源评价与探测技术功能实验室, 山东 青岛 266061,中国地质调查局青岛海洋地质研究所, 国土资源部油气资源和环境地质重点实验室, 山东 青岛 266071;海洋国家实验室海洋矿产资源评价与探测技术功能实验室, 山东 青岛 266061,中国地质调查局青岛海洋地质研究所, 国土资源部油气资源和环境地质重点实验室, 山东 青岛 266071;海洋国家实验室海洋矿产资源评价与探测技术功能实验室, 山东 青岛 266061,中国地质调查局青岛海洋地质研究所, 国土资源部油气资源和环境地质重点实验室, 山东 青岛 266071;中国地质大学, 湖北 武汉 430074,辽宁师范大学, 辽宁 大连 116000,青岛大学, 山东 青岛 266071 |
| |
| 基金项目： | 中国地质调查局项目（DD20160144、GZH201200505）、国家重点研发专项（2016YFC0402801）及科技部基础性工作专项（2014FY210600）联合资助。 |
| |
| 摘 要： | 晚更新世以来渤海南部莱州湾发生了3次重要海侵-海退事件及沉积演化过程,渤海南部多源河流三角洲对莱州湾沉积环境改变作用明显。本文选择莱州湾剖面进行沉积地层对比,结合调查资料和测试数据,初步建立莱州湾沉积地层格架,分析晚更新世以来莱州湾沉积演化过程。研究发现,渤海南部中小河流与黄河泥沙为莱州湾沉积物的共同物质来源,二者在不同阶段分别对莱州湾沉积演化起主导作用。提出本区沉积地层具有分期性、分段性和相关性规律。在124.6~72.0 ka B.P.,60.0~24.4 ka B.P.和10.2~4.0 ka B.P.出现过3次暖湿期,分别对应沧州海侵、献县海侵和黄骅海侵,主要发育滨浅海相沉积,向南退积为三角洲/潮坪—河流沉积;由陆向海,短源河流沉积贡献降低,黄河沉积贡献增加。在72.0~60.0 ka B.P.和24.4~10.2 ka B.P.出现2次冷干期,分别对应玉木早冰期和玉木晚冰期,河流相发育,三角洲进积。受海陆交互作用影响,晚更新世以来渤海南部莱州湾大致经历了浅海相—三角洲—潮坪—浅海相—三角洲—陆相的沉积演化。
|
| 关 键 词： | 莱州湾 晚更新世 海侵/海退 沉积演化 |
| 收稿时间： | 2017/12/5 0:00:00 |
| 修稿时间： | 2018/1/23 0:00:00 |
The evolution of sedimentary environment since late Pleistocene in Laizhou Bay, Bohai Sea |
| |
| GAO Maosheng,GUO Fei,HOU Guohu,QIU Jiandong,KONG Xianghuai,LIU Sen,HUANG Xueyong and ZHUANG Haihai.The evolution of sedimentary environment since late Pleistocene in Laizhou Bay, Bohai Sea[J].Chinese Geology,2018,45(1):59-68. |
| |
| Authors: | GAO Maosheng GUO Fei HOU Guohu QIU Jiandong KONG Xianghuai LIU Sen HUANG Xueyong and ZHUANG Haihai |
| |
| Affiliation: | Qingdao Institute of Marine Geology, China Geological Survey, Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, Shandong, China;Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, Shandong, China,Institute of Earth Environment, CAS, Xi''an 710061, Shaanxi, China,Qingdao Institute of Marine Geology, China Geological Survey, Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, Shandong, China;Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, Shandong, China,Qingdao Institute of Marine Geology, China Geological Survey, Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, Shandong, China;Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, Shandong, China,Qingdao Institute of Marine Geology, China Geological Survey, Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, Shandong, China;Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, Shandong, China,Qingdao Institute of Marine Geology, China Geological Survey, Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, Shandong, China;China University of Geoscience, Wuhan 430074, Hubei, China,Liaoning Normal University, Dalian 116000, Liaoning, China and Qingdao University, Qingdao 266071, Shandong, China |
| |
| Abstract: | There have existed three transgression-regression events and sedimentary evolution processes by sea level changes since late Pleistocene in the southern coast of Laizhou Bay, Bohai Sea. It is obvious that a multi-source fluvial delta sedimentary system may be more dominant for the sedimentary environment. Based on previous researchers'' survey and collected data, the authors carried out research work such as division of sedimentary units, sedimentary facies analysis and stratigraphic division and correlation, with the purpose of establishing sedimentary stratigraphic framework of the Laizhou Bay. Besides, the authors focused on analyzing the sedimentary processes of the Laizhou Bay since Late Pleistocene. It is concluded that the main provenance of borehole 07 is Bailang River and the Yellow River, which have played an important role in the multi-source fluvial delta sedimentary system of the southern coast of Laizhou Bay since Late Pleistocene. The evolution can be divided into two glacial periods and three interglacial periods, corresponding to three transgression events and two regression events in Laizhou Bay since late Pleistocene. By geochemistry and provenance analysis, sediments have the characteristics of generation, segment and correlation. In 124.6-72.0 ka B.P., 60.0-24.4 ka B.P. and 10.2-4.0 ka B.P., there occurred three warm-wet periods, respectively corresponding to Cangzhou transgression, Xianxian transgression, and Huanghua transgression; In 72.0-60.0 ka B.P. and 24.4-10.2 ka B.P., which were two dry and cold periods, there was a continental sedimentary environment, corresponding to Wurm early glacier age and Wurm late glacial age. During the transgression period, there always developed littoral-neritic facies in marine area, which was gradually transitional to delta and fluvial facies in the land field, with sediments showing retrogradation superposition pattern. Contribution of short runoff rivers (Bailang river) was reduced gradually from land to sea. During the regression period, fluvial and delta facies were formed in most areas of Laizhou Bay. Terrigenous input of short runoff rivers increased, with sediments showing progradational sequences. From late Pleistocene to Holocene, the region went through sedimentary evolution of neritic facies-delta-continental facies-tidal flat-neritic facies-delta-continental facies. |
| |
| Keywords: | Laizhou Bay late Pleistocene transgression/regression sedimentary evolution |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国地质》浏览原始摘要信息 |
|
点击此处可从《中国地质》下载全文 |
|
